Pneumatic Conveying of bulks / aggregates
Benefits Pneumatic Transport
In comparison to other transport methodologies, pneumatic conveying provides several, significant advantages:
- Dust formation on the workfloor is limited to a minimum due to the fact that the transport system is completely closed.
- Lifecycle maintenance costs are reduced to a minimum due to the minimal number of moving parts.
- Virtually unlimited, complex routing configurations, over/under existing equipment & pipe bridges with relatively small radius curves, up to 180 degrees.
- Being isolated from its surrounding environment, degradation potential of the transported product is kept to a minimum.
- The use of shuttle valves in the conveyor line allows for the selection of multiple receivers/stations.
- Existing transport systems are typically easily replaced by pneumatic conveying systems due their compact installed dimensions.
Dense Phase Transport (2-10 m/s)
Dense phase transport is the transport whereby the material moves through the piping as a ‘plug’. The transport medium, air, pushes the material ahead as a batch slug. This principle of pneumatic conveying delivers transport at low speeds & at a low air consumption. Typically, a compressor (medium pressure) is used as the source for the generation of transport medium.
Medium Phase transport (10-20 m / s)
Medium Phase transport is the transport in which the material is conveyed on the bottom half of the tubular. The transport air pushes the material ahead. This principle of pneumatic transport provides relatively low transport velocities with a slightly higher air consumption, as compared to dense phase transport. Typically, a compressor (medium pressure) is used as the source for the generation of transport medium.
Lean (dilute) Phase transport (15-30 m / s)
Lean Phase transport is the transport by which the material is carried by the air. The material is suspended in the air flow. This principle of transport provides higher transport speeds at a higher air consumption. A blower, or vacuum source are typically used as sources for the generation of transport medium.